/*
 * Copyright 2011 Michele Mancioppi [michele.mancioppi@gmail.com]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package cave.nice.testMessage.ui.tags;

import java.io.IOException;
import java.util.List;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;

import cave.nice.testMessage.data.DataManager;
import cave.nice.testMessage.data.VerifiedAccount;

import com.google.appengine.api.users.User;
import com.google.appengine.api.users.UserService;
import com.google.appengine.api.users.UserServiceFactory;

@SuppressWarnings("serial")
public class ShowAlreadyRegisteredAccounts extends TagSupport {

	private List<VerifiedAccount> verifiedAccounts = null;

	@Override
	public int doStartTag() throws JspException {
		UserService userService = UserServiceFactory.getUserService();
		User user = userService.getCurrentUser();
		if (user == null) {
			return SKIP_BODY;
		}

		DataManager dataManager = DataManager.getInstance();
		try {
			verifiedAccounts = dataManager.getVerifiedAccounts();
			if (verifiedAccounts.isEmpty()) {
				return SKIP_BODY;
			}
		} catch (Exception e) {
			throw new JspException(e);
		} finally {
			dataManager.close();
		}

		return EVAL_PAGE;
	}

	@Override
	public int doAfterBody() throws JspException {
		try {
			pageContext.getOut().println("<ul>");
			for (VerifiedAccount verifiedAccount : verifiedAccounts) {
				pageContext.getOut().println(
						"<li><a href=\"mailto:"
								+ verifiedAccount.getEmailAddress() + "\">"
								+ verifiedAccount.getEmailAddress()
								+ "</a> (since "
								+ verifiedAccount.getRegistrationDate()
								+ ")</li>");
			}
			pageContext.getOut().println("</ul>");
		} catch (IOException e) {
			throw new JspException(e);
		}

		return EVAL_PAGE;
	}

}
